Roof connection



March 18 1924. 1,487,161

. c. L. HOLT ROOF CONNECTION v Filled March 13 1923 x0 m a 0 [Q 00 (u mm N Q (Y v .Q Q e i D Q Q l .g5 g I o im f :Q g

G O l 3.3,'- l u l |I", 1|"1 It] V Q afm-r1# G G .I l l I l CD g f m e e c@ lo 5 w Q (u Q1 QQ Q (l) A [Q oo Q Patented Mar. 16, 1924.

UNEF T CHARLES L. HOLT, 0F LAWRENCE, MASSACHUSETTS, ASSIGNOR TO HOLT ROOF CON- NECTION COMPANY, 0F LAWRENCE, MASSACHUSETTS, A CORPORATION OF MASSA- CHUSETTS.

ROOF CONNECTION'.

Application file d March 13, 1923. Serial No. 624,846.

To all whom t may concern:

Be it known that I, CHARLES L. HoL'r, av

that t f e havinff amonflr others the advan )p C? b 3 tages hereinafter pointed out.

In the drawings of one embodiment of my novel roof connection selected for illustration and description,

Fig. 1 is a side elevation of the connection installed on a roof, the latterbeing broken away; and v Fig. 2, a vertical section of the same on the line 2-2, Fig. 1, the lower slip joint member being, in this case, broken away and the joint of this member with the leader pipe shown.

This particular form of my invention is designed for use in connection withwooden or other relatively thin roofs and when there is ample space beneath the roof to eiiect the installation conveniently.

Referring to the drawings, Figs. 1, 2, the

j roof structure 1 as of wood of conventional type, is shown as provided with a tar and gravel coating comprising several layers of felt 2 and one or more layers of. tar 3, and loose gravel lthereon. In such case, Fig. 2, the leader drain or vent pipe 5, usually of iron,y is brought up through the building to a convenient distance below the roof: Into the upper end of this pipe is connected the pipe 5a which forms one member of my slip or expansion joint. Thereafter a telescoping section 6, slightly less in ,diameter and of any material, preferably copper, is dropped through the aperture in the roof and its lower end into the upper end of the pipe 5 and the joint completed as will be described.

To securely anchor this section 6 upon the roof and prevent downward movement of it from any canse relative to the roof, Fig. 2,

the section is provided at its upper end with.

a collar or root fitting 7 having a flange 8 of convenient width which may rest directly upon the tar and felt or paper or the roof structure. l

To prevent any movement of the section 6 upward through the roof, Fig. 2, the section is provided near its upper end with a loosely iitting flanged sliding lock collar 9 provided with one or more bosses 10. These bosses, Fig. 2, are grooved on their inner faces to receive each a locking wedge 11 which may be driven into the groove after the collar is pushed up into place against the roof, and the wedges locked there by set screws 12. Thus the pipe section 6 is firmly secured to the roof against movement in either direction, whether the lower side of the roof is parallel with the upper face or not.

.In order to allow for movement of the leader pipe 5 upwardly, and that of the roof and its section 6 downwardly, Fig 2, a slip or expansion joint is provided for the two pipes 5a and 6. Such joint in this instance comprises on the upper end of the pipe section 5 a collar 13 with an upwardly extended ange 14, thecollar being drilled to receive bolts 15.

The pipe section 6, Fig. 2, is provided near its lower end with a gland ring 16 having a flangel? also drilled to receive the bolts 15. Between the flange 14 and the pipe 6.is inserted any suitable packing 18 as an asbestos graphite gasket. By means of the nuts 19 the gland 16 is pressed firmly down upon the gasket 18 and a water tight joint is :formed between the two pipes, which however, permits free movement of the pipe 6 relative to the pipe 5a or vice versa whenever necessary. As the pipe 6 is of less diameter externally than the internal diameter of the pipe 5a there is clearance enough between them to permit adjustment of the two pipe ends to oiset any diference in the alignment of the two pipes.

For providing a water tight joint between the roof and the upper end of the pipe 6 I have conceived the following novel construction. As I have already stated, Fig. 2, the roof illustrated is a conventional one and comprises the wood section 1, sheets of paper or felt 2 and a layer of tar 3, covered by a layer of gravel 4, and in order to obtain a water tight joint between the pipe and the roof it is common to provide a flashing 7 member of suitable material, as copper, se-

cured to the upper end of the pipe 6 and suitably embedded in the roof structure about its outer` edge. According to one method commonly employed at present, the flashing is soldered `about and to the upper end' of the pipe section 6 and the flashing is then laid out dat upon the roof. When the roofer undertakes to llay the several thicknesses of felt 2 beneath the flashing, he crowds them beneath the flashing as best he can, but many times with unsatisfactory results. After th-is }the layer of pitch or tar is Spread over the felt and the gravel is laid upon the pitch. Frequently the joint proves to be imperfect and Water finds its way therethrough.

lt is one object of this invention to improve the construction of this joint of the roof and flashing, and to that end, lllig` 2, in the present instance, ll form the roof fitting 7 with a circular depressed channel 20 therein and secure it to the upper end of the pipe 6 in any convenient manner. l also provide a flashing member 21 of suitable material, as copper, andy proper outer diameter, and provide it with a central opening to fit'the u `per end of the pipe section 6. After the elt layers 2 have been carefully laid upon the wood l, and their edges butted up to the edge of the roof fitting 7, the flashing 21 is laid upon the felt, covered with a layer or two of felt and then with tar 3, and a gravel stop ring 22 positioned upon the flashing and pipe end 6. rllhis gravel stop ringer roof drain guard has a solid outer flange 23 and serrated inner flange 24, the latter permitting water to pass through it into the pipe but acts to catch the gravel that rain ma tend to wash into the drain pipe and it as upon its lower face a raised rib 25, which, when crowded down, for-ces the thin flashing beneath it into the channel 20 of the fitting 7 and makes a water tight joint. ,o

For securely` holding the gravel stop member down upon the flashing and ensuring the water tight joint described, any convenient means may be used as the strainer 26 which is secured in position by tightening up the nut 27 on the upper end of the rod 28, the lower end of which is in threaded or other adjustable engagement with a socket member 29, the lower end of' which in turn receives a rod 30 secured in the upper end of the pipe section 6.

By the method described there is no difculty in properly embedding the flashing in the roof structure so that the joint is perfectly tight.

According to the present practice of craftsmen in installing roof connections the plumber installs the leader pipe upwardly through the building as it progressses and nally installs the pipe 6 and flashing 2l secured to it, whether the roofer is ready linearer to cooperatewith him or not. Sometimes this is done because, the roof bein closed in, it is desired to obtain all possi le prol te-ction from rain or snow temporarily. l/Vhen the roofer comes, as already stated, he completes the roof making the best joint he can at the pipe 6, puts the strainer in place working however, under the disadvantages already pointed out. llf he starts the joint between the flashing and fitting 7 at any one point, the joint will leak, and damage will be done. By the use of my improved construction, if the pipe 6 is installed before the roofer is ready to cooperate, the flashing is not put in place by the plumber, but that is left for the roofer to do. When he does it he is able to first properly lay the felt, then the flashing, then further layers of felt and pitch and finally complete the joint by clamping the gravel stop firmly down upon the flashing by any convenient means, as the strainer 26, and bolt 28 and nut 27. i

This invention is not limited to the particular embodiment thereof described and pipe, a flashing member overlying the roof fitting and pipe end, a gravel stop member with a rib on its under side, and means secured to the pipe section and bearing on the gravel stop for forcing the flashing into the roof fitting channel.

2. A roof connection comprising a roof pipe sect-ion, a grooved roof fitting thereon to prevent downward' movement of the pipe, a loose fitting roof locking collar adapted to be locked to the pipe against the under side of the roof to prevent upward movement of the pipe, a flashing member overlying the fitting and upper pipe end, a gravel stop member with a rib on its under side also over the flashing and pipe end, and means secured to the pipe for forcing 'the dashing into the roof tting groove.

3. A roof connection comprising a roof pipe section, a roof fitting thereon to prevent downward motion of the pipe, portions of the upper face of the fitting lying in a plurality of planes, a dashing member thereover and over the pipe end a gravel stop member, and strainer thereon forcing the flashing into the several planes of the roof fitting member surface and against the pipe end.

a. A roof connection comprising a roof' pipe section, a rooffitting thereon with an odset po1t1on on its upper face, a flashing tibi lll@

ill@

member, a gravel stop member overlying the fitting and pipe end, and a strainer on the gravel stop secured to the pipe end acting to force the flashing against both the normal and offset portions of the face of the fitting.

5. A roof connection comprising a roof pipe section, a locking collar thereon adapted to belocked against the under side of thel roof, a roof fitting thereon with an irregular upper face, to prevent the' pipe from moving downward, a flashing mem-y ber over the fitting, a gravel stop member with an irregular lower face over the flashing, a strainer above 'the ravel stop and means for locking the stramer against the grave] stop to force the lower face of the 4 latter and the fiashing tightly down upon the roof fittingmember upper face.

6. A roof connection comprising a roof drain guard comprisin a ring adapted to rest on the roof and a ut the roof outlet, said ring having an upwardly projecting rib at its outer periphery to 4provide a gravel stop, upwardly extending gravel intercepting projections adjacent its inner periphery, and a rib on its lower face, and.

a strainer cup secured below the ring and adapted to be inverted over said. outlet with its rim resting on said ring' betweenl the upwardly projecting rib vand said projections; a grooved roof collar resting on .the roof, a flashing member compressed between said ring rib and collar groove to form a water tight joint, a pipe secured to the root collar, and a lockingv collar on the pipe adaptedto be locked thereto to lock the pipe against the under side of the roof against vertical movement relative thereto. y7. A roof connection comprising a-,roof collar adapted to be inserted in the roof opening and having a flange adapted -to rest on the upper side of the roof to hold the collar against downward movement therein, a pi rigidly connected to said collar, a locklng collar for theunder side of the roof and about thel pipe andl adjustable thereon to different positions and inclinations, the roof collar having a channel in4 its upper face, la flashing member thereover, and over the pipe end, a gravel stop ring with a rib on its lower face over the flashing and pipe end .and forcing the flashing into the said channel, means comprising an arched strainer and tension rod secured to the pipe and channeled roof collar to lock said elements in said relation, a locking wedge adapted to be forced upwardly in the space between said pipe and locking collar to `hold the -latter and pipe.

against upward movement, and a yielding connection for the lower end of the pipe.

8. In combina-tion, a Aroof pipe movably connected at itsv lower end,l and passing through and terminating adjacent the sur'- face of the roof, means for rigidly lconnecting said pipe to the roof to hold the same against vertical movement in either direction with relation to the roof including a roof collar with a groove therein over the pipe end, a flashing member over the plate and pipe end and embedded in the roof structure, a` gravel stop .ring on the upper side of the roof with a rib on its lower face acting to crowd Said flashin groove in the roof collar, an a locking 'collar von the pipe beneath the roof the whole the roo the pipe.

presenting a water tight joint of outer surface with the interior of into the 9. -A roof connection comprising the roof lower face 'and forcing the fiashing into the groove 20 in the flange 8, locking wedges 11 for lockingxthe collar -9 to. the-pipeand roof on the surface, and a yielding connection for the lower end of the pipe.

In testimony whereof, I have signed my name to thisfspeefication. v

CHARLES L. Hoi/r. 

